<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Vue中js动画与Velocity.js的结合</title>
    <script src="js/vue.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/velocity/1.2.3/velocity.min.js"></script>
</head>
<body>
<div id="root">
    <transition name="fade"
        @before-enter="handleBeforeEnter"
        @enter="handleEnter"
        @after-enter = "handleAfterEnter"
        @before-leave="handleBeforeEnter"
        @leave="handleEnter"
        @after-leave = "handleAfterEnter"
    >
        <div v-show="show">hello world</div>
    </transition>

    <button @click="handleClick">toggle</button>
</div>
<script>
    var vm = new Vue({
        el: "#root",
        data: {
            show: true
        },
        methods: {
            handleClick: function () {
                this.show = !this.show
            },
            handleBeforeEnter: function (el) {
                el.style.opacity = 0;
            },
            handleEnter: function (el, done) {
                Velocity(el, {opacity:1},{duration:1000,complete:done})
            },
            handleAfterEnter:function (el) {
                console.log("动画结束")

            },
        }
    })
</script>
</body>
</html>